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create-agent

create-agent is a skill for Claude Code, Codex from baldaworks/callee. It costs 62 tokens per session (2,630 once invoked), scanned A, a copy of callee-create-agent, MIT.

A tool for creating project-defined agents and fixed workflows in Markdown or YAML. It supports agents that act as roles, run local checks, involve a person, run steps in order, repeat steps, or choose between steps.

In plain words
What is it for?
Use it to scaffold an agent, compose a multi-step workflow, run checks in sequence or in a loop, or route work to one selected child agent.
Why use it?
It helps turn repeated instructions into named, reusable processes inside a project. It also makes the workflow structure explicit instead of leaving it in ad hoc prompts.

Skill for Claude CodeCodex

Written for Claude Code and Codex: shipped in a Claude Code plugin, but also agents/openai.yaml present. Also seen: mentions Codex; mentions OpenCode.

Part of the callee plugin — 2 skills shipped together

not rated 78repo changed 1mo ago A scan 62 tokens copy · 97% MIT

Good fit Use it to scaffold an agent, compose a multi-step workflow, run checks in sequence or in a loop, or route work to one selected child agent.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/baldaworks/callee/create-agent
View source ↗ baldaworks/callee
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add baldaworks/callee --skill create-agent
Clone the repo
git clone --depth 1 https://github.com/baldaworks/callee

Made for: Claude Code, Codex.

Or install callee, the plugin that ships this one along with the rest of its 2 skills.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for create-agent

README.md
[![agentmods](https://agentmods.dev/badge/skills/baldaworks/callee/create-agent/github.svg)](https://agentmods.dev/skills/baldaworks/callee/create-agent)
Your own site
<a href="https://agentmods.dev/skills/baldaworks/callee/create-agent"><img src="https://agentmods.dev/badge/skills/baldaworks/callee/create-agent/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for create-agent

Your own site · 80×15
<a href="https://agentmods.dev/skills/baldaworks/callee/create-agent"><img src="https://agentmods.dev/badge/skills/baldaworks/callee/create-agent.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 62 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,630 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin 97% copy Near-identical to another mod in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00062 $0.02630
Opus 5.5 $0.00025 $0.01052
Sonnet 5.5 $0.00012 $0.00526
Haiku 4.5 $0.00006 $0.00263

Measured 1mo ago against content hash 6b22413e3ff5, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

create-agent scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 1mo ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

Origin

This is a copy

97% identical to callee-create-agent — 2 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

plugins/callee/skills/create-agent/SKILL.md · 234 lines

How it starts

The opening of the file, as written. The whole thing — 234 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Create a Callee agent

Use callee when available. Otherwise use the pinned fallback npx --yes @baldaworks/[email protected] for every command in the task.

Choose the kind and ID

Inspect the existing catalog before writing:

callee agent list --json

Choose exactly one supported kind:

  • Role: one provider-backed leaf agent.
  • DynamicRole: Role behavior with provider fields rendered from visit-time state.
  • Script: one deterministic local validator leaf.
  • Human: one operator-backed interactive leaf.
  • TypeSafeJev: one typed judgment through TypeSafe's native Jev API.
  • OpenRouterDecision: one typed judgment through OpenRouter Decisions.
  • Sequential: ordered child agents that each run once.
  • Parallel: unattended child agents that run concurrently and join.
  • Loop: ordered child agents repeated until an authorized Role escalates or the iteration limit is exhausted.
  • Router: exactly one named or default child selected by a deterministic route template.

Write below .callee/. Markdown is the default; use a complete .yaml or .yml object only when the user explicitly requests YAML. Directories such as roles/ and workflows/ are optional ID namespaces, not kind selectors. The agent ID is the relative path without its final supported extension.

Choose the authored interaction profile

Choose the profile before authoring any Role or Human. Keep whole-run mode, Role protocol, and ACP permissions distinct:

Intent Role fields Default execution path
Supervised one-shot (default) Omit spec.interactive; use permissions.mode: ask Interactive whole run for permission prompts; one-shot Role
Conversational Set spec.interactive: true; choose permissions independently Interactive whole run and REPL Role
Unattended restricted Omit spec.interactive; use permissions.mode: deny Non-interactive when the tree has no Human and all inputs are supplied
Unattended approved Omit spec.interactive; use permissions.mode: allow only on explicit request Non-interactive when the tree has no Human and all inputs are supplied

Read the full file on GitHub · 234 lines

Files

What ships with it

2 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 1mo ago Changed · +48 lines · +3 tokens per session 6b22413e3ff5
  2. 1mo ago Changed · +1 lines · +2 tokens per session 8245b981a960
  3. 1mo ago Changed · +37 lines · +9 tokens per session c5f8a2cd0026
  4. 2mo ago First seen · 148 lines · 48 tokens per session scan A 60d2c693f0d8

Subscribe to this mod's changes

create-agent is a skill published in the GitHub repository baldaworks/callee (78 stars, last pushed 20d ago), licensed MIT. It adds 62 tokens to every session and 2,630 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it A with 0 findings. It is 97% identical to callee-create-agent, differing in 2 lines, and is treated as a copy.

Building agentsGoacpagentsai-agentsdeveloper-toolsmarkdown
Related

create-agent compared with skills from other repositories

create-agent next to 6 skills from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
create-agentbaldaworks/calleeSkill7820d agoMITA62Claude Code, Codex
migrate-goldmark-extension-v1-to-v2yuin/goldmarkSkill5.1k4d agoMITA26Claude Code
migrate-goldmark-app-v1-to-v2yuin/goldmarkSkill5.1k4d agoMITA25Claude Code
authoring-go-sdk-tasksastronomer/agentsSkill4584d agoApache-2.0A165Claude Code
deploying-go-sdk-bundlesastronomer/agentsSkill4584d agoApache-2.0A146Claude Code
bubbletea-testingdimetron/pi-goSkill2223d agoMITA139Claude Code, Codex
pi-loop-forensicsdimetron/pi-goSkill2223d agoMITA65Claude Code, Codex